Sale 1 & 2:

Sold for $89.95 and $89 on Marketplace.tf

https://marketplace.tf/items/30743;5;u7;kt-2

https://backpack.tf/item/4596621631

https://backpack.tf/item/4450814577

89.95/1.9 = ~47.3

89/1.9 = ~46.8

X = 47 (2x)

Sale 3:

Sold for FoD RPS + cheap skin

Seller: https://backpack.tf/profiles/76561198075024818#!/compare/1511395200/1511481600

Buyer: https://backpack.tf/profiles/76561198257120982#!/compare/1511395200/1511481600

The taunt is in-date, but there are sellers for much cheaper now. Better to exclude this sale.

Sale 4:

Sold for Showstopper Flippin’ Awesome

Seller: https://backpack.tf/profiles/76561198257120982#!/compare/1511481600/1511568000

Buyer: https://backpack.tf/profiles/76561198123511024#!/compare/1511395200/1511568000

Same story as the RPS.

Sale 5:

Bulk for Green Energy Co-Pilot

Seller: https://backpack.tf/profiles/76561198182027829#!/compare/1516579200/1516838400

Buyer: https://backpack.tf/profiles/76561198081213486#!/compare/1516579200/1516838400

Sellers:

https://i.imgur.com/zixcdEQ.png

54 keys:

https://backpack.tf/item/5515814160

55 keys:

https://backpack.tf/item/4596621631

70 keys:

https://backpack.tf/item/4569760507

Sales at:

47 (2x)

Going with 47 flat.